Jack Mason Canton SaltvsSeiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition

Owners and reviewers widely praise the Jack Mason Canton Salt for its high-quality finishing, textured dials, and the inclusion of the La Joux-Perret G100 automatic movement. The 39mm case is noted for its slim profile and comfortable wearability, with some specifically highlighting the versatility of the white dial and the attractive green and white variants. However, some owners find the case proportions stubby and the design uninspired, while others report issues with the clasp's micro-adjustment system and overly tight bracelet screws. Accuracy figures range from ±7 seconds per day, and the movement offers a 68-hour power reserve. On balance, owners and reviewers rate the Jack Mason Canton Salt highly for its impressive finishing and value, particularly appreciating the well-executed case and bracelet.

The Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition features a 40mm case, 300m water resistance, and a 72-hour power reserve from the Calibre 6R55 movement, distinguished by a grey bezel insert and a wave-patterned silvery-white dial. The clasp includes an improved diving suit extension. Owners note the MarineMaster case is comfortable and wearable. However, some owners criticize the 6R54 movement's accuracy, reporting deviations of +25/-15 seconds per day, and find the production number too large for a "limited" edition, deeming it too expensive. On balance, owners rate the Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition positively for its comfortable case and attractive dial, despite concerns regarding its price and movement accuracy.